Nuclear core component hold-down assembly

专利名称：Nuclear core component hold-down

assembly

发明人：Jin Liu,Yu Chung Lee申请号：US12124195申请日：20080521公开号：US07995701B2公开日：20110809

专利附图：

摘要：A plate mounted fuel assembly hold-down system that provides a definedchannel for both the insertion and removal of reactor head mounted, fixed in-coredetector instrumentation, provides a guided path for the fixed in-core detector during

insertion, and shields the instrument shroud against coolant cross flow. The hold-downassembly includes a base plate that seats on the adapter plate of the fuel assembly andhas openings that align with the control rod guide thimbles. A hollow sleeve extendsthrough and below a central opening in the base plate to mate with the fuel assemblyinstrument thimble. The sleeve extends above the base plate and through and above anupper core plate of the reactor. A hold-down bar is slidably mounted on the sleeve and isrestrained below the top of the sleeve. A spring is positioned around the sleeve and iscaptured between the hold-down bar and the base plate.

申请人：Jin Liu,Yu Chung Lee

地址：Elgin SC US,Columbia SC US

国籍：US,US

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